make -k clean
/bin/rm -f */.deps/*.P
/bin/rm -f config.cache
aclocal; autoheader; aclocal; automake; autoconf

CFLAGS=-O6 CXX=gcc CXXFLAGS="-O6 -felide-constructors -fno-exceptions -fno-rtti" ./configure --prefix=/usr/local/mysql --with-debug --with-extra-charsets=complex
make